She was last seen on the Avery family's property in 2005 shooting
photos of a car. Avery was later convicted of killing her and
Dassey of helping him, and his case and its complications are
investigated by "Making a Murderer."

The tweets — see below — show Manitowoc County Sheriff's
Department's Sgt. Andrew Colborn during the trial and claim that
the group will release documents on Tuesday, including an alleged
evidence list and telephone records between Colborn and Sheriff's
Department Lt. James Lenk.

Lenk and Colborn were suspected of discovering evidence that would
have cleared Avery of the 1985 sexual assault and attempted
murder of a female jogger. Avery spent 18 years in prison before
being exonerated for the rape by DNA testing. Lenk and Colborn
were named in Avery's subsequent $36 million civil suit against
Manitowoc County.

The two officers were also instrumental in the investigation into
the 2005 murder of Halbach with a focus on Avery, at the same
time his civil suit was ongoing. Lenk would later find Halbach's
car keys in Avery's room in plain view, despite being missed in
previous searches.

Anonymous' alleged evidence list and phone records could shed
some light on the officers' conduct during the Halbach
investigation and trial that sent Avery back to prison with a
life sentence. Dassey, who was 16 at the time of the trial, was
tried as an adult and is also serving a life sentence.